PCA9306D datasheet(2/21 Pages) PHILIPS

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PCA9306_2

Product data sheet

Rev. 02 — 21 February 2007

2 of 21

NXP Semiconductors

PCA9306

Dual bidirectional I2C-bus and SMBus voltage-level translator

All channels have the same electrical characteristics and there is minimal deviation from

one output to another in voltage or propagation delay. This is a beneﬁt over discrete

transistor voltage translation solutions, since the fabrication of the switch is symmetrical.

The translator provides excellent ESD protection to lower voltage devices, and at the

same time protects less ESD-resistant devices.

Features

I 2-bit bidirectional translator for SDA and SCL lines in mixed-mode I2C-bus applications

I Standard-mode, Fast-mode, and Fast-mode Plus I2C-bus and SMBus compatible

I Less than 1.5 ns maximum propagation delay to accommodate Standard mode and

Fast mode I2C-bus devices and multiple masters

I Allows voltage level translation between:

N 1.0 V Vref(1) and 1.8 V, 2.5 V, 3.3 V or 5 V Vbias(ref)(2)

N 1.2 V Vref(1) and 2.5 V, 3.3 V or 5 V Vbias(ref)(2)

N 1.8 V Vref(1) and 3.3 V or 5 V Vbias(ref)(2)

N 2.5 V Vref(1) and 5 V Vbias(ref)(2)

N 3.3 V Vref(1) and 5 V Vbias(ref)(2)

I Provides bidirectional voltage translation with no direction pin

I Low 3.5 Ω ON-state connection between input and output ports provides less signal

distortion

I Open-drain I2C-bus I/O ports (SCL1, SDA1, SCL2 and SDA2)

I 5 V tolerant I2C-bus I/O ports to support mixed-mode signal operation

I High-impedance SCL1, SDA1, SCL2 and SDA2 pins for EN = LOW

I Lock-up free operation for isolation when EN = LOW

I Flow through pinout for ease of printed-circuit board trace routing

I ESD protection exceeds 2000 V HBM per JESD22-A114, 200 V MM per

JESD22-A115, and 1000 V CDM per JESD22-C101

I Packages offered: SO8, TSSOP8, VSSOP8, XQFN8

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